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WO2018037660A1 - Dispositif de charge - Google Patents

Dispositif de charge Download PDF

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Publication number
WO2018037660A1
WO2018037660A1 PCT/JP2017/020861 JP2017020861W WO2018037660A1 WO 2018037660 A1 WO2018037660 A1 WO 2018037660A1 JP 2017020861 W JP2017020861 W JP 2017020861W WO 2018037660 A1 WO2018037660 A1 WO 2018037660A1
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WO
WIPO (PCT)
Prior art keywords
voltage
charging
secondary battery
converter
power supply
Prior art date
Application number
PCT/JP2017/020861
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English (en)
Japanese (ja)
Inventor
智貴 大中
規生 福井
健志 ▲濱▼田
Original Assignee
Fdk株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fdk株式会社 filed Critical Fdk株式会社
Publication of WO2018037660A1 publication Critical patent/WO2018037660A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Definitions

  • the present invention relates to a charging device for a secondary battery such as a nickel hydride secondary battery.
  • Secondary batteries such as nickel metal hydride secondary batteries can be used repeatedly by charging and are widely used in various fields.
  • a charging device for charging a secondary battery it is necessary to appropriately control a charging voltage and a charging current when charging the secondary battery.
  • a charging current As large as possible within a range where the secondary battery does not deteriorate.
  • an input power source that supplies power to a charging device that charges a secondary battery often has a power supply capability that is not always constant. For example, when the input power supply supplies power to other devices and the load on the devices can fluctuate, the maximum power that can be supplied to the charging device can fluctuate. Therefore, for example, in a charging device, if the secondary battery is charged with a maximum charging current that can be charged in the shortest time, the power supply capacity of the input power supply is insufficient and the voltage of the input power supply decreases. In such a case, there is a possibility that the charging voltage of the minimum necessary voltage cannot be obtained and the charging of the secondary battery has to be interrupted.
  • the present invention has been made, and the purpose thereof is to realize downsizing and cost reduction of a charging device that can continue to charge a secondary battery even if the power supply capability of the input power supply fluctuates. There is to do.
  • a charging device of the present invention includes a DC-DC converter that converts DC power supplied from an input power source into constant-voltage DC power, and a DC voltage output from the DC-DC converter.
  • a charging circuit for charging a secondary battery Based on a charging circuit for charging a secondary battery, a power supply voltage detection circuit for detecting a voltage of the input power supply, an output voltage setting circuit for setting an output voltage of the DC-DC converter, and the voltage of the input power supply,
  • a control device that controls a charging circuit and the output voltage setting circuit, and the charging circuit includes a charging current limiting resistor that is connected in series to the secondary battery and limits a charging current of the secondary battery, The charging current limiting resistor has a resistance value at which a charging current of the secondary battery becomes a maximum charging current when an output voltage of the DC-DC converter is a rated charging voltage.
  • the output voltage of the DC-DC converter is set to a charging voltage lower than the rated charging voltage so that the charging current of the secondary battery is limited to a current lower than the maximum charging current.
  • the charging of the secondary battery is started by setting the charging voltage to the rated charging voltage. Thereby, the secondary battery is charged with a constant current at the maximum charging current. At this time, it is preferable to gradually increase the charging voltage of the secondary battery to the rated charging voltage.
  • the maximum charging current is, for example, the maximum value of the charging current that can flow in a range in which the secondary battery does not deteriorate, and is a current that is large enough to charge the secondary battery in the shortest time. Therefore, if the power supply capacity of the input power supply is sufficient and the secondary battery can be charged with the maximum charging current until the secondary battery is fully charged, the secondary battery is fully charged in the shortest time. be able to.
  • the charging current of the secondary battery is limited to a current lower than the maximum charging current.
  • the charging voltage is set to a voltage lower than the charging voltage, and the secondary battery is subsequently charged.
  • the charging voltage at this time is a voltage that is lower than the rated charging voltage and that is capable of charging the secondary battery with an optimal charging current until full charging.
  • the charging voltage of the secondary battery is defined by the output voltage of the DC-DC converter
  • the charging current of the secondary battery is defined by the current limiting resistor connected in series to the secondary battery. Is done. Therefore, the power consumed for charging the secondary battery is automatically increased or decreased when the output voltage of the DC-DC converter is variably set. That is, in the charging device according to the present invention, the output voltage of the DC-DC converter is variably set in accordance with the decrease in the voltage of the input power supply so that the charging current of the secondary battery is limited to a current lower than the maximum charging current. Since the configuration is simple, a charging device that can continue to charge the secondary battery even if the power supply capability of the input power source varies can be configured in a small size and at low cost.
  • FIG. 1 is a circuit diagram illustrating a configuration of a charging device according to the present invention.
  • the timing chart which illustrated an example of charge control in case there is sufficient margin in the power supply capability of an input power supply.
  • 6 is a timing chart illustrating an example of charge control when the power supply capability of the input power source is restored during charging of the secondary battery.
  • the circuit diagram which illustrated the principal part of the output voltage setting circuit.
  • FIG. 1 is a circuit diagram illustrating the configuration of a charging device 10 according to the present invention.
  • the charging device 10 includes a DC-DC converter 11, a charging circuit 12, a power supply voltage detection circuit 13, an output voltage setting circuit 14, and a charging control unit 15.
  • the secondary battery 20 is a secondary battery such as a nickel hydride secondary battery.
  • the DC-DC converter 11 is a constant voltage power source that converts DC power supplied from an input power source (not shown) connected to the input terminal IN and the ground terminal GND into constant voltage DC power. More specifically, the DC-DC converter 11 is a step-down converter that steps down the input voltage Ve of the charging device 10 and outputs a constant voltage.
  • the DC-DC converter 11 is not particularly limited to a step-down converter, and may be, for example, a step-up converter or a buck-boost converter.
  • the charging circuit 12 is a circuit that charges the secondary battery 20 with a DC voltage output from the DC-DC converter 11, and includes a transistor Q1 and a charging current limiting resistor R8.
  • the transistor Q1 is a semiconductor switch that opens and closes a charging path from the DC-DC converter 11 to the secondary battery 20, and is an NPN bipolar transistor in this embodiment.
  • the transistor Q 1 has a collector connected to the output of the DC-DC converter 11 and an emitter connected to the positive electrode of the secondary battery 20.
  • the base of the transistor Q1 is connected to the charge control unit 15, and is ON / OFF controlled by the charge control unit 15.
  • the charging current limiting resistor R8 is connected in series to the secondary battery 20 and is a resistor that limits the charging current Iout of the secondary battery 20.
  • the charging current limiting resistor R8 is such that the charging current Iout of the secondary battery 20 is the maximum charging current (first charging current I1 (FIGS. 2 to 4)).
  • the resistance value is as follows.
  • the power supply voltage detection circuit 13 is a circuit that detects the input voltage Ve of the charging device 10, and is a voltage dividing circuit that includes two resistors R1 and R2.
  • the resistor R1 has one end connected to the input terminal IN and the other end connected to one end of the resistor R2.
  • the other end of the resistor R2 is connected to the ground terminal GND.
  • a connection point between the resistors R1 and R2 is connected to the charge control unit 15.
  • the output voltage setting circuit 14 is a circuit for setting the output voltage of the DC-DC converter 11, and includes a voltage dividing circuit 141 and a voltage dividing ratio changing circuit 142.
  • the voltage dividing circuit 141 is a circuit that divides the output voltage of the DC-DC converter 11, and includes two resistors R3 and R4.
  • the resistor R3 has one end connected to the output of the DC-DC converter 11 and the other end connected to one end of the resistor R4.
  • the other end of the resistor R4 is connected to the ground terminal GND.
  • a connection point (voltage dividing point) between the resistor R3 and the resistor R4 is connected to a feedback control terminal of the DC-DC converter 11.
  • the DC-DC converter 11 controls the output voltage so that the voltage at the connection point between the resistor R3 and the resistor R4 is maintained at a predetermined voltage.
  • the voltage dividing ratio changing circuit 142 is a circuit for changing the voltage dividing ratio of the voltage dividing circuit 141, and includes three resistors R5 to R7 and a transistor Q2.
  • the resistor R5 has one end connected to a connection point between the resistors R3 and R4, and the other end connected to the collector of the transistor Q2.
  • the resistor R6 has one end connected to the output of the DC-DC converter 11 and the other end connected to one end of the resistor R7.
  • the other end of the resistor R7 is connected to the charge control unit 15.
  • An amplifier or a D / A converter may be connected between the resistor R7 and the charging control unit 15.
  • the transistor Q2 is a semiconductor switch that opens and closes the parallel connection of the resistor R5 to the resistor R3 of the voltage dividing circuit 141, and is a PNP bipolar transistor in this embodiment.
  • the transistor Q2 has a collector connected to the other end of the resistor R5, an emitter connected to the output of the DC-DC converter 11, and a base connected to a connection point between the resistor R6 and the resistor R7.
  • the charging control unit 15 is a known microcomputer control device, and is a control device that executes charging control of the secondary battery 20.
  • the charging control unit 15 may be a control circuit using an amplifier other than the microcomputer control device.
  • the charging control unit 15 further controls the charging circuit 12 and the output voltage setting circuit 14 based on the input voltage Ve of the charging device 10. More specifically, the charging control unit 15 performs ON / OFF control of the transistor Q1 and base current control of the transistor Q2 based on the voltage at the connection point between the resistors R1 and R2.
  • FIG. 2 is a timing chart illustrating the operation of the charging apparatus 10 and illustrates an example of charging control when there is a sufficient margin in the power supply capability of the input power supply.
  • the charging control unit 15 sets the output voltage of the DC-DC converter 11 to the rated charging voltage V1 and starts charging the secondary battery 20 (timing T1). More specifically, the charge control unit 15 turns on the transistor Q1 with the charge control voltage VA lowered. Then, since the base current I Q2B of the transistor Q2 becomes the maximum, the operation starts with the charging voltage Vout and the charging current Iout being minimum. By gradually increasing the charging control voltage V A , the base current I Q2B of the transistor Q2 gradually decreases. As a result, the charging voltage Vout and the charging current Iout of the secondary battery 20 increase, and the input voltage Ve of the charging device 10 decreases.
  • the charging voltage Vout of the secondary battery 20 reaches the rated charging voltage V1 before the input voltage Ve of the charging device 10 drops below the first threshold voltage Vth1.
  • the charging current Iout of the secondary battery 20 rises to the first charging current I1 (timing T2). Therefore, the secondary battery 20 is charged with the first charging current I1, which is the maximum charging current.
  • the maximum charging current is, for example, the maximum value of the charging current Iout that can flow within a range in which the secondary battery 20 does not deteriorate, and is a current that is large enough to charge the secondary battery 20 in the shortest time. is there.
  • the charging control unit 15 determines the secondary battery 20 from the temperature of the secondary battery 20 detected by a temperature sensing element (not shown) such as a thermistor. Detect the state of charge. Then, the charging control unit 15 turns off the transistor Q1 when the charging state of the secondary battery 20 becomes fully charged, and ends the charging of the secondary battery 20 (timing T3). In this way, when there is a sufficient margin in the power supply capability of the input power supply, the secondary battery 20 can be charged with the first charging current I1 which is the maximum charging current. Can be fully charged.
  • FIG. 3 is a timing chart illustrating the operation of the charging apparatus 10 and illustrates an example of charging control when the power supply capability of the input power supply is insufficient.
  • the charging control unit 15 sets the output voltage of the DC-DC converter 11 to the rated charging voltage V1 and starts charging the secondary battery 20 (timing T11).
  • the charging voltage Vout and the charging current Iout of the secondary battery 20 increase, and the input voltage Ve of the charging device 10 decreases.
  • the input voltage Ve of the charging device 10 is reduced to the first threshold voltage Vth1 or less before the charging voltage Vout of the secondary battery 20 rises to the rated charging voltage V1. Decrease (timing T12).
  • the first threshold voltage Vth1 detects a state in which the power supply capability of the input power supply is insufficient when the secondary battery 20 is charged at a constant current with the rated charging voltage V1 and the maximum charging current (first charging current I1). Is for. Therefore, the first threshold voltage Vth1 is set to a voltage equal to or higher than the lower limit of the input voltage of the DC-DC converter 11 that can output the rated charging voltage V1, for example.
  • the first threshold voltage Vth1 may be set, for example, as a potential difference ⁇ V between the rated value and detected value of the input voltage Ve of the charging device 10.
  • the charging control unit 15 stops the charging control voltage VA and returns the applied voltage to the previous state (timing) T12).
  • the current flowing through the resistor R4 of the voltage dividing circuit 141 is fixed. By doing so, the voltage dividing ratio of the voltage dividing circuit 141 is changed.
  • the charging control unit 15 is configured such that the charging current of the secondary battery 20 is lower than the maximum charging current (first charging current I1) on condition that the input voltage Ve of the charging device 10 has decreased to the first threshold voltage Vth1 or less.
  • the output voltage of the DC-DC converter 11 is set to a charging voltage V2 lower than the rated charging voltage V1 so as to be limited to (second charging current I2).
  • This charging voltage V2 is a voltage lower than the rated charging voltage V1, and is a voltage that can charge the secondary battery 20 to full charge with the maximum current of the input power supply capability.
  • the voltage is set to the same voltage as the minimum required charging voltage of the secondary battery 20 or higher.
  • the secondary battery 20 Charging current Iout decreases to the second charging current I2, whereby the charging voltage Vout of the secondary battery 20 decreases to the charging voltage V2 (timing T13). That is, when the power supply capability of the input power supply is insufficient and the input voltage Ve of the charging device 10 decreases to the first threshold voltage Vth1 or less, the charging current of the secondary battery 20 is the maximum charging current (first charging current I1).
  • the secondary battery 20 is continuously charged at a charging voltage V2 lower than the rated charging voltage V1 so as to be limited to a lower current (second charging current I2).
  • the charging control unit 15 turns off the transistors Q1 and Q2 and ends the charging of the secondary battery 20 (timing T14).
  • the power consumed by charging the secondary battery 20 is reduced, so that the charging time is increased by that amount, but the maximum power supply capability of the input power supply is increased.
  • the charging of the secondary battery 20 can be continued while maintaining the charging current (second charging current I2).
  • the charging voltage Vout of the secondary battery 20 is defined by the output voltage of the DC-DC converter 11, and the charging current Iout of the secondary battery 20 is connected to the secondary battery 20 in series. Defined by the charging current limiting resistor R8. Therefore, the power consumed for charging the secondary battery 20 is automatically increased or decreased when the output voltage of the DC-DC converter 11 is variably set. That is, the charging device 10 according to the present invention outputs the output of the DC-DC converter 11 in accordance with a decrease in the input voltage Ve of the charging device 10 so that the charging current of the secondary battery 10 is limited to a current lower than the maximum charging current. Since it is a simple configuration in which the voltage is variably set, the configuration can be reduced in size and cost. Therefore, according to the present invention, it is possible to reduce the size and cost of the charging device 10 that can continue charging the secondary battery 20 even if the power supply capability of the input power supply varies.
  • FIG. 4 is a timing chart illustrating the operation of the charging apparatus 10, and illustrates an example of charging control when the power supply capability of the input power source is recovered while the secondary battery 20 is being charged.
  • the charging control unit 15 sets the output voltage of the DC-DC converter 11 to the rated charging voltage V1 and starts charging the secondary battery 20 (timing T21).
  • the charging voltage Vout and the charging current Iout of the secondary battery 20 increase, and the input voltage Ve of the charging device 10 decreases.
  • the input voltage Ve of the charging device 10 is reduced to the first threshold voltage Vth1 or less before the charging voltage Vout of the secondary battery 20 rises to the rated charging voltage V1. Decrease (timing T22).
  • the charging control unit 15 stops the charging control voltage VA and returns the applied voltage to the previous state (timing) T22).
  • the output voltage of the DC-DC converter 11 decreases to the charging voltage V2.
  • the output voltage of the DC-DC converter 11 is lowered to the charging voltage V2 so that the charging current of the secondary battery 10 is limited to a current lower than the maximum charging current, whereby the charging voltage Vout of the secondary battery 20 is charged.
  • the voltage V2 is lowered to the maximum, and the charging current Iout of the secondary battery 20 can continue to flow with the maximum supply capacity of the input power supply (timing T23).
  • the charging control unit 15 is configured when the power supply capability of the input power supply is recovered before the charging state of the secondary battery 20 becomes fully charged, and the input voltage Ve of the charging device 10 rises to the second threshold voltage Vth2 or more. Starts to increase the charging control voltage VA at that time (timing T24). As a result, the resistor R5 is not connected in parallel to the resistor R3 of the voltage dividing circuit 141, so that the voltage dividing ratio of the voltage dividing circuit 141 is changed to the original voltage dividing ratio.
  • the voltage at the voltage dividing point of the voltage dividing circuit 141 (the connection point between the resistors R3 and R4) is lowered, so that the output voltage of the DC-DC converter 11 rises, and as a result, the DC-DC converter. 11 output voltage rises to the rated charge voltage V1. That is, after the input voltage Ve of the charging device 10 decreases to the first threshold voltage Vth1 or lower, the charging control unit 15 increases the input voltage Ve of the charging device 10 to the second threshold voltage Vth2 or higher that is higher than the first threshold voltage Vth1. As a condition, the output voltage of the DC-DC converter 11 is set to the rated charge voltage V1.
  • the second threshold voltage Vth2 indicates that the power supply capability of the input power source has been restored to such an extent that the secondary battery 20 can be charged with a constant current at the rated charging voltage V1 and the maximum charging current (first charging current I1). It is for detection. Therefore, the second threshold voltage Vth2 is set to a voltage at least equal to or higher than the first threshold voltage Vth1, and is preferably set to a voltage higher than the first threshold voltage Vth1.
  • the second threshold voltage Vth2 may be set as a potential difference ⁇ V between the rated value and the detected value of the input voltage Ve of the charging device 10, for example.
  • the charging voltage Vout and the charging current Iout of the secondary battery 20 increase and the input voltage Ve of the charging device 10 decreases. . Then, before the input voltage Ve of the charging device 10 drops below the first threshold voltage Vth1, the charging voltage Vout of the secondary battery 20 rises to the rated charging voltage V1, thereby the charging current Iout of the secondary battery 20 becomes the first It rises to 1 charging current I1 (timing T25). Therefore, the secondary battery 20 is charged with the first charging current I1, which is the maximum charging current, after the power supply capability of the input power supply is restored. Then, when the charging state of the secondary battery 20 is fully charged, the charging control unit 15 turns off the transistor Q1 and ends the charging of the secondary battery 20 (timing T26).
  • the secondary battery 20 can be charged by setting the charging current Iout flexibly and accurately in accordance with the fluctuation of the power supply capability of the input power supply.
  • FIG. 5 and 6 are circuit diagrams illustrating the main part of the output voltage setting circuit 14.
  • FIG. 5 shows a state in which the transistor Q2 is OFF
  • FIG. 6 shows a state in which the transistor Q2 is ON. It is illustrated.
  • the current i3 is a current that flows through the resistor R3.
  • the current i4 is a current that flows through the resistor R4.
  • the current i5 is a current that flows through the resistor R5.
  • the voltage Vfe is a voltage at the connection point between the resistor R3 and the resistor R4.
  • the DC-DC converter 11 controls the output voltage so that the voltage Vfe is maintained at a constant voltage.
  • the output voltage of the DC-DC converter 11 when charging the secondary battery 20, that is, the charging voltage Vout is expressed by the following equation (1).
  • Vout R3 ⁇ i3 + Vfe (1)
  • i3 i4.
  • the voltage Vfe is expressed by the following equation (2).
  • Vfe R4 ⁇ i4 (2)
  • a charging device includes a DC-DC converter that converts direct-current power supplied from an input power source into constant-voltage direct-current power, and a secondary battery that uses the direct-current voltage output from the DC-DC converter.
  • a charging circuit for charging the input power supply a power supply voltage detection circuit for detecting the voltage of the input power supply, an output voltage setting circuit for setting an output voltage of the DC-DC converter, and the charging circuit based on the voltage of the input power supply And a control device for controlling the output voltage setting circuit, wherein the charging circuit includes a charging current limiting resistor connected in series to the secondary battery and configured to limit a charging current of the secondary battery, and the charging The current limiting resistor has a resistance value at which a charging current of the secondary battery becomes a maximum charging current when an output voltage of the DC-DC converter is a rated charging voltage.
  • the output voltage of the DC-DC converter is set to a charging voltage lower than the rated charging voltage so that the current is limited to a current lower than the maximum charging current.
  • the charging device According to the charging device according to the first embodiment of the present invention, it is possible to reduce the size and cost of the charging device that can continue to charge the secondary battery even if the power supply capability of the input power supply fluctuates. .
  • the charging device is the above-described charging device according to the first embodiment of the present invention, wherein the control device is configured such that after the voltage of the input power source has decreased to the first threshold voltage or less.
  • the output voltage of the DC-DC converter is set to the rated charging voltage on condition that the voltage of the input power source has risen above the second threshold voltage higher than the first threshold voltage.
  • the rated charge voltage is set so that the charging current of the secondary battery is limited to a current lower than the maximum charging current.
  • the charging voltage is set to a lower voltage, and the secondary battery is subsequently charged.
  • the setting of the output voltage of the DC-DC converter is changed to the rated charge voltage. That is, when the power supply capability of the input power source is restored during charging, the secondary battery is thereafter charged with a constant current with the maximum charging current. Therefore, according to the charging device according to the second embodiment of the present invention, the secondary battery can be charged by automatically and accurately setting the charging current according to the fluctuation of the power supply capability of the input power supply.
  • the output voltage setting circuit includes a voltage dividing circuit that divides the output voltage of the DC-DC converter; A voltage dividing ratio changing circuit for changing a voltage dividing ratio of the voltage dividing circuit, and the DC-DC converter controls an output voltage so that a voltage at a voltage dividing point of the voltage dividing circuit is maintained at a predetermined voltage. .
  • the output voltage of the DC-DC converter can be variably set with a very simple circuit configuration. Cost reduction can be realized.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Dc-Dc Converters (AREA)

Abstract

L'invention concerne un dispositif de charge (10) pourvu d'un convertisseur CC-CC (11), d'un circuit de charge (12), d'un circuit de détection de tension d'alimentation électrique (13), et d'un circuit de réglage de tension de sortie (14). Le circuit de charge (12) comprend une résistance de limitation de courant de charge (R8) qui est connectée en série à une batterie secondaire (20) et limite un courant de charge (Iout) de la batterie secondaire (20). La résistance de limitation de courant de charge (R8) a une résistance par laquelle le courant de charge (Iout) de la batterie secondaire (20) va atteindre un courant de charge maximal lorsque la tension de sortie du convertisseur CC-CC (11) est à une tension de charge nominale (V1). Lorsqu'une tension d'entrée (Ve) du dispositif de charge (10) a diminué jusqu'à une première tension seuil (Vth1) ou moins, la tension de sortie du convertisseur CC-CC (11) est réglée à une tension de charge (V2) de sorte que le courant de charge de la batterie secondaire (20) soit limité à un courant qui est inférieur au courant de charge maximal.
PCT/JP2017/020861 2016-08-24 2017-06-05 Dispositif de charge WO2018037660A1 (fr)

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Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
US20200403701A1 (en) 2018-02-27 2020-12-24 Nec Corporation Equalizer device, communication system, and equalization method
US11652315B2 (en) 2018-04-17 2023-05-16 Aptiv Technologies Limited Electrical power supply device
US10752189B2 (en) 2018-04-17 2020-08-25 Aptiv Technologies Limited Electrical power supply device and method of operating same
US10635150B2 (en) * 2018-04-17 2020-04-28 Aptiv Technologies Limited Electrical power supply device and method of operating same
US11342705B2 (en) 2018-04-17 2022-05-24 Aptiv Technologies Limited Electrical power supply device and method of operating same
TWI661648B (zh) * 2018-04-18 2019-06-01 神基科技股份有限公司 充電電路與充電控制方法
US10608457B2 (en) 2018-06-28 2020-03-31 Getac Technology Corporation Charging circuit and method of controlling charging

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05121103A (ja) * 1991-10-25 1993-05-18 Fujitsu Ltd 二次電池充電方法
JPH1132444A (ja) * 1997-05-16 1999-02-02 Sony Corp 充電装置
JP2006129619A (ja) * 2004-10-29 2006-05-18 Hitachi Koki Co Ltd 電池の充電装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3932196B2 (ja) * 2004-06-28 2007-06-20 オリジン電気株式会社 電源装置の制御方法及び電源装置
CN2891442Y (zh) * 2005-12-29 2007-04-18 比亚迪股份有限公司 电动汽车便携式充电器
CN103066666B (zh) * 2013-01-22 2015-08-26 矽力杰半导体技术(杭州)有限公司 一种升压型电池充电管理系统及其控制方法
US9844107B2 (en) * 2014-08-25 2017-12-12 Cree, Inc. High efficiency driver circuitry for a solid state lighting fixture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05121103A (ja) * 1991-10-25 1993-05-18 Fujitsu Ltd 二次電池充電方法
JPH1132444A (ja) * 1997-05-16 1999-02-02 Sony Corp 充電装置
JP2006129619A (ja) * 2004-10-29 2006-05-18 Hitachi Koki Co Ltd 電池の充電装置

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TW201810859A (zh) 2018-03-16
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TWI637579B (zh) 2018-10-01

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